Scaling AI across a global workforce while maintaining operational efficiency and ensuring timely, accurate decision-making across complex business processes. EY needed to move beyond experimentation to enterprise-wide AI value creation.
The challenge
What was deployed
EY leveraged Microsoft 365 Copilot and Copilot Studio to build custom agents integrated into its unified EY.ai platform. Teams developed agents to reduce friction between systems, simplify complex workflows, and provide instant access to knowledge (e.g., 21+ million tax and legal documents). Deployment reached 100,000 employees.
The results
Achieved 15% productivity boost across the organization. Client-facing deployments showed 95% faster lead times and 37% reduction in operational costs. EY integrated 41,000+ Copilot agents to amplify employee expertise and decision-making capabilities across financial reporting, project planning, and client delivery.
Read the numbers honestly
Limitations: Metrics are vendor-reported (Microsoft and EY) without independent verification. The 15% productivity figure and operational cost reduction are self-reported outcomes. No granular breakdown of cost per agent or ROI provided in snippets. Timeline and phased rollout details are limited. Long-term sustainability and agent performance consistency remain unaddressed in available sources.
Frequently asked
What is the agentic AI technology EY deployed?
EY deployed Microsoft 365 Copilot and Copilot Studio, building custom agents integrated into its unified EY.ai platform. These agents automate workflows, reduce system friction, and amplify employee expertise across operations.
How many agents did EY deploy?
EY integrated more than 41,000 Copilot agents across the organization to support employee productivity and client delivery.
What productivity gains did EY achieve?
EY reported a 15% productivity boost across 100,000 employees. For client-facing scenarios, deployments achieved 95% faster lead times and 37% operational cost reductions.
Which business processes benefited most from agents?
Key use cases included financial reporting, project planning, and client service delivery. Custom agents also provided instant access to 21+ million tax and legal documents to support expert decision-making.
Is this deployment methodology available to EY clients?
Yes. EY offers Microsoft Copilot implementation services to help clients scale AI and develop custom agents for enterprise-wide value creation.
agentic AIAI agentsMicrosoft CopilotCopilot Studioenterprise AIautomationproductivityoperational efficiencyprofessional servicesworkflow automation
